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### Question: How to know you have Pyloric stenosis (Diagnosis)?
### Response: The condition is usually diagnosed before the baby is 6 months old. A physical exam may reveal signs of dehydration. The infant may have a swollen belly area. The doctor may detect the abnormal pylorus, which feels like an olive-shaped mass, when touching the stomach area. An ultrasound of the abdomen may be the first imaging test performed. Other tests that may be done include:
Blood chemistry panel: often reveals an electrolyte imbalance Barium x-ray: reveals a swollen stomach and narrowed pylorus